Combo Critters is a free Android game developed by Lucky Kat Studios that combines collecting, evolving, and battling critters. The game is set in space where you explore nine different planets and collect over 100 critters with unique abilities. You can combine these critters to create new and stronger ones in the combine-machine, which is the game's main feature.

The game has a casual-RPG battle system where you battle against quirky inhabitants of the planets you explore. You can also battle against your friends' social media profiles, which is a fun and unique feature. The game has gorgeous colorful pixel art that adds to the overall charm of the game. The groovy tunes by Maxo further enhance the experience.

Overall, Combo Critters is an enjoyable game that offers a unique combination of collecting, evolving, and battling critters. The game's fun battle system, unique feature of battling against your friends' social media profiles, and charming pixel art make it worth trying out.